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  • Electronic Resource  (2)
  • 1975-1979  (2)
  • 1970-1974
  • 1977  (2)
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  • Electronic Resource  (2)
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  • 1975-1979  (2)
  • 1970-1974
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Entomologia experimentalis et applicata 21 (1977), S. 57-62 
    ISSN: 1570-7458
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Durch fraktionierte Dosen von insgesamt 6250 und 8000 rads einer Gammabestrahlung (25 bzw. 32 Teilbehandlungen zu 250 rads mit 4 h-Intervallen) wurden Puppen des Baumwollkapselkäfers, Anthonomus grandis Boheman, in beiden Geschlechtern sexuell sterilisiert. Die Sterblichkeit, 5 d nach der Behandlung, betrug bei den so behandelten Männchen bei 6250 rads 14%, bei 8000 rads 27% im Vergleich zu 46%, wenn eine äquivalente akute Dosis bei frisch geschlüpften Käfern angewendet wurde. Die Pheromonproduktion der Männchen in den ersten 4 d erreichte bei 6250 rads-Bestrahlung 1/3 derjenigen der Kontrolltiere; 5–11 d nach der Behandlung war kein Unterschied. Dieses Verfahren eignet sich für die Massensterilisation von Kapselkäfern, wie sie bei einem Ausrottungsprogramm nötig ist. Diese Technik ist anwendbar auf andere Insekten, die gegenüber akuten Dosen hochempfindlich sind.
    Notes: Abstract Fractionated doses of 6,250–8,000 rads of gamma irradiation when administered to pupae of the boll weevil, Anthonomus grandis Boh., sexually sterilized both sexes. Mortality of males thus treated with 6,250 and 8,000 rads via fractionation was 14% and 27% respectively, by 5 days posttreatment compared with 46% mortality when an equivalent acute dose was administered to newly emerged adults. Pheromone production of males irradiated at 6,250 rads was one-third that of the control for the first 4 days, but equal that of the control during 5–11 days posttreatment. This procedure lends itself to the large-scale sterilization of weevils needed in an eradication program. This technique is applicable to other insects that are highly susceptible to acute doses.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 12 (1977), S. 330-333 
    ISSN: 0030-493X
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: It is reported that ions gererated in the gas phase by dissociative electron attachment to nitrous oxide react with propyne-d3 (trideuteromethyl acetylene) to yield the ions ĊD=C=CH, ĊD2—C≡C-, -CD2C≡CH and CD3C≡C-. From their differing reactivity with methyl formate it is suggested that these four ions are distinct stable species.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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